From fa719d5c99a365fd7dea95d5f8c8986c7d0a0646 Mon Sep 17 00:00:00 2001
From: slguan <slguan@taosdata.com>
Date: Thu, 11 Jul 2019 19:02:45 +0800
Subject: [PATCH] Handling invalid connections when deleting a database

---
 src/rpc/src/trpc.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/rpc/src/trpc.c b/src/rpc/src/trpc.c
index 4c16ada51c..31b6f8f94d 100644
--- a/src/rpc/src/trpc.c
+++ b/src/rpc/src/trpc.c
@@ -503,6 +503,10 @@ int taosGetRpcConn(int chann, int sid, char *meterId, STaosRpc *pServer, SRpcCon
   }
 
   pConn = pChann->connList + sid;
+  if (pChann == NULL || pChann->connList == NULL) {
+    tTrace("%s cid:%d sid:%d, connlist is null, received:%s", pServer->label, chann, sid, meterId);
+    return TSDB_CODE_MISMATCHED_METER_ID;
+  }
 
   if (pConn->signature == NULL) {
     memset(pConn, 0, sizeof(SRpcConn));